Install Nova Launcher and open the app drawer. Navigate to Nova Settings > App & widget drawers > Hide Apps. Select the apps you want to hide, and they won't show up on your app tray anymore. To reveal an app again, simply return to the same menu and uncheck the desired app.

Make sure you have the latest Google Play services and Google app installed on your device.

Change phones system language to English USA: The Google Assistant will roll out in phases, targeting its English speaking US users first so make sure you change your phones system language to English USA. Below is a quick guide on how to do this:

On the rear of the OnePlus 3T nothing has changed over the OnePlus 3, with the same Sony-made 16MP rear camera protruding from the metal uni-body, and a single LED flash sitting below it. So it doesn`t have Front Flash.